Arduino

According to Arduino itself, "arduino is an open-source electronics prototyping platform based on flexible, easy-to-use hardware and software. it's intended for artists, designers, hobbyists and anyone interested in creating interactive objects or environments."

What can I say more? Need I say more? Probably not, everyone seems to work with arduino these days, you know how awesome and easy to work with it is.

During some of the tinkering moments while working on an interactive environments project, we needed a pulsating LED. I used an arduino duemilanova to control everything. This is an open source hardware/software platform that makes prototyping super easy, especially if you have some programming experience.